US5730160A - Segmented filter cigarette - Google Patents

Segmented filter cigarette Download PDF

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Publication number
US5730160A
US5730160A US08/565,151 US56515195A US5730160A US 5730160 A US5730160 A US 5730160A US 56515195 A US56515195 A US 56515195A US 5730160 A US5730160 A US 5730160A
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United States
Prior art keywords
filter
segment
segmented
jacket
draw
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Expired - Fee Related
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US08/565,151
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English (en)
Inventor
Werner Schneider
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British American Tobacco Germany GmbH
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British American Tobacco Germany GmbH
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Assigned to BRITISH-AMERICAN TOBACCO (GERMANY) GMBH reassignment BRITISH-AMERICAN TOBACCO (GERMANY) GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHNEIDER, WERNER
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes

Definitions

  • the invention relates to a segmented filter cigarette.
  • Such cigarettes comprise a tobacco rod including at least two segments of differing tobacco fillings, a wrapping for said tobacco rod, and a filter.
  • a segmented cigarette has been proposed, as is known from EP 0 174 550 B1.
  • the smoking article described therein features a tobacco rod having two axial segments, the unlit segment having an average density at least 20% greater than the average density of the fire-end segment.
  • the fire-end segment has a nicotine delivery which is higher than that of the unlit end segment to furnish a strong taste already for the first puffs.
  • the object of the present invention to provide a segmented filter cigarette which overcomes the disadvantages of prior art as described above. More particularly, the intention is to propose a segmented filter cigarette exhibiting no abrupt difference in taste at the segment transition and enabling the same or similar tobaccos to be used in the segments. In this arrangement boosting the strength of the first puffs may be intensified not only by the structure of the tobacco rod, but additionally by the combination with a special filter.
  • a segmented-filter cigarette in which at least two segments of said tobacco rod have a coaxial structure, each comprising an inner core of tobacco material, a wrapping for said inner core which preferably has a low permeability to air, a jacket of a tobacco material, and a wrapping highly permeable to air for said jacket; the tobaccos of said inner cores of said segments have the same or a very similar condensate potential; the tobaccos of said jackets of said segments have the same or a very similar condensate potential which differs very greatly from the condensate potential of said inner cores; by defining the resistances to draw of said inner cores and of said jackets of said segments and by adapting said filter it is achieved that the smoke is drawn substantially from the region having a high condensate potential of the first-burning segment during smoking of the segmented filter cigarette, and the smoke is drawn substantially from the region of said segment having the lower condensate potential during smoking of the filter-end segment.
  • Such a coaxial structure permits a varied configuration of the inner and outer sections of the segments as regards the desired taste effect which may be favorably influenced by defining the resistances to draw in the inner and outer sections so that no abrupt difference in taste, due to the various tobaccos involved, results at the segment transition, although the inner cores of the segments and the jackets of the segments have the same or similar condensate potential.
  • this segment being suitably specified to contribute towards boosting the strength of the first puffs. Namely, as long as the first-burning segment is being smoked, the smoke is drawn preferably from its region having a high condensate potential, resulting in the resistance to draw ratio automatically changing until the next following segment is attained. In this segment the resistance to draw ratio remains relatively constant, the smoke being drawn from the region having the lower condensate potential to a substantially greater proportion than in the first-burning segment.
  • the length of the total tobacco rod of a cigarette in accordance with the invention may be 40 to 100 mm, it preferably being 45 to 70 mm.
  • the inner cores of the tobacco rod may have a diameter of 3 to 6 mm and preferably 4.5 to 5.5 mm. As far as the length of this first-burning segment is concerned, this corresponds to 0.5 to 0.8 times and preferably 0.3 to 0.4 times the total length of the tobacco rod in the preferred embodiments.
  • both the inner cores and the jackets of the various segments have an additional common wrapping produced of paper or tobacco sheet. This measure can guarantee economic production in forming the longitudinal axial rod. In certain cases this common wrapping may serve as the sole wrapping.
  • the segmented filter cigarette according to the invention is preferably characterized by it comprising a coaxial filter consisting of filter core, a wrapping for the filter core, a filter jacket and a wrapping for the filter jacket, filter core and filter jacket being structured of known filter materials, especially fibers or non-woven fabric.
  • the diameter of the filter core may be 2.5 to 6.5 mm and preferably 3.5 to 5.5 mm.
  • the wrapping of the filter core consists of paper or tobacco sheet, sheet material of cellulose acetate or polyolefines, such as particularly polyethylene or polypropylene also being possible, and exhibits a low permeability to air or is preferably impermeable to air.
  • the filter may include further filter segments adjoining the mouth end.
  • the coaxial filter elements are configured so that one of the two coaxial filter parts, namely filter core or jacket, exhibit a high filtering effectiveness whilst the other in each case has a low filtering effectiveness.
  • the first embodiment of the segmented filter cigarette in accordance with the invention is characterized in that the ratio of the resistance to draw of the jacket of the first-burning segment to the resistance to draw of the inner core of the first-burning segment is smaller that the ratio of the resistance to draw of the jacket of the filter-end segment to the puff resistance of the inner core of the filter-end segment, the tobaccos of both jackets having a high condensate potential.
  • the smoke is preferably drawn from the jacket of the first-burning segment, providing a high perception of taste during these first puffs.
  • the smoke is preferably drawn from the inner core thereof, i.e. the region having a low condensate potential so that the perception of taste remains substantially the same in strength for both segments.
  • the first modified form as described above of the segmented filter cigarette according to the invention is identified in the following as version A.
  • the resistance to draw of the jacket of the first-burning segment, relative to a tobacco rod length of 63 mm is 20 to 40 mm WC, preferably 25 to 35 mm WC, whilst the resistance to draw of the inner core is 300 to 600 mm WC and preferably about 450 to 550 mm WC.
  • This version A may be further characterized in that the resistance to draw of the jacket of the filter-end segment, relative to a tobacco rod length of 63 mm, is 100 to 300 mm WC, preferably 130 to 170 mm WC, whilst the resistance to draw of the inner core is 50 to 150 mm WC and preferably about 75 to 125 mm WC.
  • a coaxial filter assigned to this version A has advantageously a filtering effectiveness which is 10 to 60%, preferably 10 to 30% for the filter core, whilst that of the filter jacket is 70 to 100% preferably 90 to 100% and the filter has a degree of ventilation from 0 to 80%.
  • a segmented filter cigarette according to the present invention it is possible to adjust the resistances to draw of the filter elements as a function of the filter ventilation employed so that the ratio of the amount of smoke flowing into the periphery of the coaxial filter to the amount of smoke flowing into the core region of the coaxial filter substantially equals the ratio of the amount of smoke flowing out of the tobacco jacket to the amount of smoke flowing out of the tobacco core, in each case after the first-burning segment of the tobacco rod having been smoked.
  • the coaxial filter is able to make a further significant contribution to enhancing the strength of the first puffs. This is achieved in that, depending on the difference between the flow conditions in the rod, which in turn depend on the changing puff resistance conditions there, and the flow conditions in the filter, a changing percentage of smoke is led into the highly effective filter jacket.
  • the segmented filter cigarette in accordance with version B of the present invention is characterized in that the ratio of the resistance to draw of the jacket of the first-burning segment to the resistance to draw of the inner core of the first-burning segment is greater than the ratio of the resistance to draw of the jacket of the filter-end segment to the resistance to draw of the inner core of the filter-end segment, the condensate potential of the tobaccos of the inner cores being high whilst that of the jacket is low.
  • the smoke is first preferably drawn from the inner core of the first-burning segment by the adjustment of the resistances to draw, resulting in a strong perception of taste in initial smoking and during the first puffs.
  • Smoking the first-burning segment results in successive adaptation to the flow conditions in the filter-end segment in which--again due to adjustment of the resistances to draw--the smoke is preferably drawn from the jacket with the low condensate potential. This again results in a cigarette, the taste perception of which during the first puffs is sufficiently strong and which exhibits no abrupt change in taste at the segment transition, i.e. here too the condensate delivery is distributed evenly to each puff.
  • the resistance to draw of the jacket of the first-burning segment, relative to a tobacco rod length of 63 mm, is 100 to 300 mm WC and preferably roughly 125 to 175 mm WC, whilst the resistance to draw of the inner core is 50 to 100 mm WC and preferably roughly 60 to 80 mm WC.
  • the version B of the segmented filter cigarette according to the invention is characterized in that the resistance to draw of the jacket of the filter-end segment, relative to a tobacco rod length of 63 mm, is 25 to 100 mm WC and preferably 30 mm WC, whilst the resistance to draw of the inner core of this segment is 125 to 300 mm WC and preferably about 150 mm WC.
  • the coaxial filter assigned to the version B is configured so that the filter effectiveness of the filter core is 70 to 100%, preferably 90 to 100%, whilst the filter effectiveness of the filter jacket is 10 to 60%, preferably 10 to 30% and the filter has a degree of ventilation of 0 to 80%.
  • Both of the versions of the segmented filter cigarette according to the invention as described above have the advantage, even when formulated as light and ultralight cigarettes, that even in initial smoking and during the first puffs a relatively strong perception of taste results which changes only slightly in the course of further smoking.
  • the embodiment of the segmented filter cigarette according to the invention shown here has a fire-end and first-burning coaxial segment 1 and a mouth- and/or filter-end coaxial segment 2, forming together the tobacco rod.
  • a coaxial filter 3 is applied to the tobacco rod, generally by a prior art tipping paper (not shown in the FIG.).
  • the first-burning segment 1 comprises the following components: an inner core 1a of a tobacco material, a wrapping 11 for the inner core 1a, a jacket 1a surrounding the inner core and a wrapping 12 for the jacket 1a.
  • the second segment 2 adjoining the first segment 1 has the following components: an inner core 2i of tobacco material, a wrapping 21 for the inner core 2i, a jacket 2a surrounding the inner core 2i and the wrapping 21 thereof, and a wrapping 22 for the jacket.
  • the wrappings 11 and 21 for the inner cores 1a and 2i are produced of paper or tobacco sheet and exhibit a low permeability to air. They may also be totally impermeable to air.
  • the outer wrappings 12, 22 of the jackets 1a and 2a are also formed of cigarette paper or tobacco sheet and are preferably highly permeable to air.
  • both the inner cores 1a, 2i and the tobacco jackets 1a, 2a of the two segments 1, 2 may have additionally a common outer wrapping; in the FIG. this common outer wrapping for the two inner cores 1a, 2i is designated by the reference numeral 25 and the common outer wrapping for the two jackets 1a, 2a by the reference numeral 35.
  • the tobaccos of the two inner cores 1a, 2i have the same or a very similar condensate potential; also the tobaccos of the two jackets 1a, 2a have the same or a very similar condensate potential, the condensate potentials of the inner cores 1a, 21 and the jackets 1a, 2a being greatly different, however, i.e. the one condensate potential is very low and the other is relatively high.
  • Segment 2 is followed by a coaxial filter 3 having a filter core 3a, a wrapping 31 for the filter core 3a, a filter jacket 3a and a wrapping 32 for the filter jacket 3a.
  • the connection between tobacco rod and filter 3 is achieved by the usual means, e.g. a tipping paper.
  • the wrapping 31 consists of paper or a sheet, e.g. of cellulose acetate or polyolefines such as e.g. polyethylene or polypropylene, and has a low permeability to air, it being preferably impermeable to air.
  • Both the filter core 3a and the filter jacket 3a consist of the usual filter materials in the form of fibers or non-wovens, one of the two filter parts, i.e. filter core 3a or filter jacket 3a being highly effective, whilst the other in each case is relatively less effective.
  • the diameter of the filter core 3a corresponds to that of the tobacco rod core.
  • the wrapping 32 for the filter jacket 3a may be either inherently permeable to air or it may be produced of a material impermeable to air, however, which in the usual way, for instance by laser beams, is provided with perforations and thus specifically rendered air-permeable, to furnish the desired filter ventilation.
  • the basic principle of the segmented cigarette lies in the fact that by suitably adapting the condensate potentials of the two segments 1, 2 the strength of the first puffs is enhanced.
  • the smoke is drawn thereby substantially from the region having a high condensate potential,- resulting in the correspondingly adapted resistance to draw ratio between the resistances to draw of the inner core and the jacket changing until the corresponding value of the segment 2 is achieved. From then on, the resistance to draw ratio of the segmented cigarette remains almost constant.
  • segment 2 the smoke is drawn to a substantial extent from the region of low condensate potential.
  • the coaxial filter 3 When suitably specified and in being specially adapted to the two segments 1, 2 of the tobacco rod the coaxial filter 3 is able to provide a further significant contribution towards enhancing the strength of the first puffs. This is achieved in that, depending on the difference between the flow conditions in the rod, which in turn depend on the changing resistance to draw conditions there, and on the flow conditions in the filter a continuously increasing percentage of the smoke is introduced into the highly effective filter region in each case, until segment 1 has been smoked.
  • the rod length Ls i.e. the length of the overall tobacco rod comprising the two segments 1 and 2 amounts to about 60 mm; the diameter of the inner core 1a, 2i of the two segments is approx. 5 mm.
  • the overall diameter of the tobacco rod and filter 3 has the usual value of roughly 7.9 mm.
  • the two versions A and B differ substantially by the spatial arrangement of the tobacco having a high condensate potential: in the version A the tobaccos of the two jackets 1a, 2a have a very high condensate potential, both the same or differing tobacco materials being able to be used, whilst in keeping with the general rule as explained above, the tobacco materials of the two inner cores 1a, 2i have a very low condensate potential. If the same tobacco materials are used the differing condensate potentials may be achieved by differing the tobacco density in each case. Preferably, however, differing tobaccos are employed.
  • the tobacco materials of the two inner cores 1a, 2i which may be either the same or different, have a very high condensate potential, whilst the tobacco materials of the two jackets 1a, 2a, which may also be the same or different, have a low condensate potential.
  • the above comments apply as regards using the same or differing tobaccos.
  • the two tobacco rod segments 1, 2 have a significantly differing ratio q of their corresponding resistances to draw Za /Zi, Za being the resistance to draw of the tobacco jacket 1a, 2a and Zi being the resistance to draw of the inner core 1i, 2i.
  • the resistance to draw ratio q for the two regions 1a, 1a of the first segment 1 is designated qi and that of the two regions 2 is designated q2.
  • the tobaccos of the two inner cores 1a and 2i have the same or very similar condensate potential which is, however, very much lower than the condensate potential of the two jackets 1a and 2a.
  • the following relates to the ratio of the resistance to draw Za of a jacket to the resistance to draw Zi of an inner core.
  • the ratio of the resistances to draw ql needs to be smaller in segment 1 than the ratio q2 of the resistances to draw Za /Zi in segment 2.
  • Selecting the length L1 of the first segment 1 determines the number of "strengthened” puffs, i.e. the effectiveness achieved.
  • the length L1 relative to the overall length Ls of the tobacco rod including the two segments 1, 2, is 0.35 Ls.
  • the resistance to draw Za of the jacket 1a of the first segment 1, relative to an overall length of the tobacco rod of 63 mm, is roughly 30 mm WC.
  • the resistance to draw Zi of the inner core 1a of the first segment 1, relative to an overall length of the tobacco rod of 63 mm, is roughly 500 mm WC.
  • the length of the second segment 2 resulting from the aforementioned adaptation of the length L1 of the first segment is thus in this example 0.65 Ls.
  • the resistance to draw Za of the jacket 2a of the second segment 2, relative to an overall length of the tobacco rod of 63 mm including the two segments 1 and 2, is roughly 150 mm WC.
  • the resistance to draw Zi of the inner core 2i of the second segment 2, relative to an overall length of the tobacco rod of 63 mm, is roughly 100 mm WC.
  • the filter efficiency of the inner core 3a of the filter 3 has a value of roughly 20%, whilst the filter efficiency of the jacket 3a of the filter amounts to roughly 95%.
  • the filter ventilation produced either by the inherent porosity of the filter wrapping 32 or by perforations, is of the order of roughly 40% to 70%.
  • the resistances to draw are to be specified as a function of the filter ventilation of the filter 3 employed so that the ratio sf of the stream of smoke flowing into the jacket 3a of the coaxial filter 3 to the stream of smoke flowing into the filter core 3a of the coaxial filter 3 is roughly equal to the ratio s2 of the stream of smoke flowing out of the jacket 2a of the second segment 2 after the first segment 1 has been smoked to the stream of smoke flowing out of the inner core 2i of the second segment 2 after the first segment 1 has been smoked.
  • the resistance to draw ratio q1 of segment 1 must be greater than the resistance to draw ratio q2 of segment 2.
  • the length L1 of the first segment 1 has roughly the same value as that in version A.
  • the resistance to draw Za of the jacket 1a of segment 1 is approx. 150 mm WC.
  • the resistance to draw Zi of the inner ore 1a of the first segment 1 is approx. 70 mm WC.
  • the resistance to draw Za of the jacket 2a, of the second segment 2 is approx. 30 mm WC.
  • the resistance to draw Zi of the inner core 2i of the second segment 2 is approx. 150 mm WC.
  • the inner core 3a of the coaxial filter 3 has a filter effectiveness of approx. 95%, whilst the filter effectiveness of the jacket 3a of the coaxial filter 3 is approx. 20%.
  • the filter ventilation is in the region of roughly 40% to 70%.
  • the filter for enhancing the strength of the first puffs contributes towards an increasing percentage of the smoke being introduced into the highly effective filter segment, i.e. depending on the difference between the flow conditions in the rod and the flow conditions in the filter, until segment 1 has been smoked.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Fats And Perfumes (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
US08/565,151 1994-12-12 1995-11-30 Segmented filter cigarette Expired - Fee Related US5730160A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4444157.6 1994-12-12
DE4444157A DE4444157C1 (de) 1994-12-12 1994-12-12 Segment-Filtercigarette

Publications (1)

Publication Number Publication Date
US5730160A true US5730160A (en) 1998-03-24

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US08/565,151 Expired - Fee Related US5730160A (en) 1994-12-12 1995-11-30 Segmented filter cigarette

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US (1) US5730160A (fr)
EP (1) EP0716816B1 (fr)
AT (1) ATE208146T1 (fr)
AU (1) AU703834B2 (fr)
BR (1) BR9505393A (fr)
DE (2) DE4444157C1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6067995A (en) * 1997-12-23 2000-05-30 Brown & Williamson Tobacco Corporation Coaxial cigarette having cross stream barrier
US6089238A (en) * 1997-05-30 2000-07-18 Brown & Williamson Tobacco Corporation Ultralight coaxial cigarette including a multipart filter
GB2368771A (en) * 2000-11-09 2002-05-15 Patricia Ann Parker Cigarette
US20050066985A1 (en) * 2003-09-30 2005-03-31 Borschke August Joseph Smokable rod for a cigarette
US20050066986A1 (en) * 2003-09-30 2005-03-31 Nestor Timothy Brian Smokable rod for a cigarette
US20070091326A1 (en) * 2005-09-28 2007-04-26 Hauni Maschinenbau Ag Device and method for measuring properties of multi-segment filters or combinations of filter segments
WO2007069091A2 (fr) * 2005-12-12 2007-06-21 Philip Morris Products S.A. Article pour fumeur avec barre coaxiale de tabac
US20110108044A1 (en) * 2009-11-11 2011-05-12 R.J. Reynolds Tobacco Company Filter element comprising smoke-altering material
US20110220134A1 (en) * 2008-09-16 2011-09-15 Martin Duke Filter For A Smoking Article
US20110232660A1 (en) * 2008-09-16 2011-09-29 Martin Duke Filter for a Smoking Article
US9220298B1 (en) 2014-09-13 2015-12-29 Viiital, LLC Technologies for smoking
JP2019505181A (ja) * 2015-12-30 2019-02-28 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 液体送達要素を備えるエアロゾル発生物品
US10609955B2 (en) 2011-04-08 2020-04-07 R.J. Reynolds Tobacco Company Filtered cigarette comprising a tubular element in filter
US11576426B2 (en) 2017-08-01 2023-02-14 British American Tobacco (Investments) Limited Modular tobacco industry product
US11957163B2 (en) 2011-04-08 2024-04-16 R.J. Reynolds Tobacco Company Multi-segment filter element including smoke-altering flavorant

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4730628A (en) * 1986-07-21 1988-03-15 R. J. Reynolds Tobacco Company Cigarette rods having segmented sections
US4874004A (en) * 1987-12-22 1989-10-17 B.A.T. Cigarettenfabriken Gmbh Coaxial cigarette
EP0174550B1 (fr) * 1984-08-31 1991-01-16 R.J. Reynolds Tobacco Company Cigarette segmentée
US5439011A (en) * 1993-06-24 1995-08-08 B.A.T. Cigarettenfabriken Gmbh Coaxial filter cigarette

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759380A (en) * 1986-11-03 1988-07-26 R. J. Reynolds Tobacco Company Filter cigarette having segmented sections
DE3836210C1 (fr) * 1988-10-24 1989-10-12 B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0174550B1 (fr) * 1984-08-31 1991-01-16 R.J. Reynolds Tobacco Company Cigarette segmentée
US4730628A (en) * 1986-07-21 1988-03-15 R. J. Reynolds Tobacco Company Cigarette rods having segmented sections
US4874004A (en) * 1987-12-22 1989-10-17 B.A.T. Cigarettenfabriken Gmbh Coaxial cigarette
US5439011A (en) * 1993-06-24 1995-08-08 B.A.T. Cigarettenfabriken Gmbh Coaxial filter cigarette

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6089238A (en) * 1997-05-30 2000-07-18 Brown & Williamson Tobacco Corporation Ultralight coaxial cigarette including a multipart filter
US6067995A (en) * 1997-12-23 2000-05-30 Brown & Williamson Tobacco Corporation Coaxial cigarette having cross stream barrier
GB2368771A (en) * 2000-11-09 2002-05-15 Patricia Ann Parker Cigarette
US7503330B2 (en) * 2003-09-30 2009-03-17 R.J. Reynolds Tobacco Company Smokable rod for a cigarette
US20050066985A1 (en) * 2003-09-30 2005-03-31 Borschke August Joseph Smokable rod for a cigarette
US20050066986A1 (en) * 2003-09-30 2005-03-31 Nestor Timothy Brian Smokable rod for a cigarette
US7753056B2 (en) 2003-09-30 2010-07-13 R. J. Reynolds Tobacco Company Smokable rod for a cigarette
US20090151739A1 (en) * 2003-09-30 2009-06-18 August Joseph Borschke Smokable Rod for a Cigarette
US20070091326A1 (en) * 2005-09-28 2007-04-26 Hauni Maschinenbau Ag Device and method for measuring properties of multi-segment filters or combinations of filter segments
US8573230B2 (en) 2005-12-12 2013-11-05 Philip Morris Usa Inc. Smoking article with coaxial tobacco rod
US20070137667A1 (en) * 2005-12-12 2007-06-21 Philip Morris Usa Inc. Smoking article with coaxial tobacco rod
WO2007069091A2 (fr) * 2005-12-12 2007-06-21 Philip Morris Products S.A. Article pour fumeur avec barre coaxiale de tabac
WO2007069091A3 (fr) * 2005-12-12 2007-10-11 Philip Morris Prod Article pour fumeur avec barre coaxiale de tabac
US20110220134A1 (en) * 2008-09-16 2011-09-15 Martin Duke Filter For A Smoking Article
US20110232660A1 (en) * 2008-09-16 2011-09-29 Martin Duke Filter for a Smoking Article
US20110108044A1 (en) * 2009-11-11 2011-05-12 R.J. Reynolds Tobacco Company Filter element comprising smoke-altering material
US8997755B2 (en) 2009-11-11 2015-04-07 R.J. Reynolds Tobacco Company Filter element comprising smoke-altering material
US10609955B2 (en) 2011-04-08 2020-04-07 R.J. Reynolds Tobacco Company Filtered cigarette comprising a tubular element in filter
US11957163B2 (en) 2011-04-08 2024-04-16 R.J. Reynolds Tobacco Company Multi-segment filter element including smoke-altering flavorant
US9220298B1 (en) 2014-09-13 2015-12-29 Viiital, LLC Technologies for smoking
JP2019505181A (ja) * 2015-12-30 2019-02-28 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 液体送達要素を備えるエアロゾル発生物品
JP7061066B2 (ja) 2015-12-30 2022-04-27 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 液体送達要素を備えるエアロゾル発生物品
US11576426B2 (en) 2017-08-01 2023-02-14 British American Tobacco (Investments) Limited Modular tobacco industry product

Also Published As

Publication number Publication date
EP0716816A2 (fr) 1996-06-19
BR9505393A (pt) 1997-10-28
AU4034395A (en) 1996-06-20
DE59509806D1 (de) 2001-12-13
AU703834B2 (en) 1999-04-01
DE4444157C1 (de) 1995-11-30
ATE208146T1 (de) 2001-11-15
EP0716816A3 (fr) 1998-02-04
EP0716816B1 (fr) 2001-11-07

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